package com.mall.order.biz.handler;

import com.mall.order.biz.context.CreateOrderContext;
import com.mall.order.biz.context.TransHandlerContext;
import com.mall.order.constants.OrderConstants;
import com.mall.order.dal.entitys.Order;
import com.mall.order.dal.entitys.OrderItem;
import com.mall.order.dal.persistence.OrderItemMapper;
import com.mall.order.dal.persistence.OrderMapper;
import com.mall.order.dto.CartProductDto;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.UUID;

/**
 *
 * 初始化订单 生成订单
 */

@Slf4j
@Component
public class InitOrderHandler extends AbstractTransHandler {
    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private OrderItemMapper orderItemMapper;



    @Override
    public boolean isAsync() {
        return false;
    }

    @Override
    public boolean handle(TransHandlerContext context) {
        CreateOrderContext createOrderContext= (CreateOrderContext) context;
        //插入订单表
        Order order=new Order();
        String orderId=UUID.randomUUID().toString();
        //全局id生成器（发号器）
        order.setOrderId(orderId);
        order.setUserId(createOrderContext.getUserId());
        order.setBuyerNick(createOrderContext.getBuyerNickName());

        order.setPayment(createOrderContext.getOrderTotal());

        order.setCreateTime(new Date());
        order.setUpdateTime(new Date());
        order.setStatus(OrderConstants.ORDER_STATUS_INIT);



        orderMapper.insert(order);

        //插入订单商品关联表
        List<Long> buyProductIds = new ArrayList<>();
        List<CartProductDto> cartProductDtoList = createOrderContext.getCartProductDtoList();
        for (CartProductDto cartProductDto : cartProductDtoList) {
            OrderItem orderItem = new OrderItem();
            String orderItemId=UUID.randomUUID().toString();
            orderItem.setId(orderItemId);
            orderItem.setItemId(cartProductDto.getProductId());
            orderItem.setOrderId(orderId);
            orderItem.setNum(cartProductDto.getProductNum().intValue());
            orderItem.setPrice(cartProductDto.getSalePrice().doubleValue());
            orderItem.setTitle(cartProductDto.getProductName());
            orderItem.setPicPath(cartProductDto.getProductImg());
            BigDecimal total = cartProductDto.getSalePrice().multiply(new BigDecimal(cartProductDto.getProductNum()));
            orderItem.setTotalFee(total.doubleValue());
            // 已锁定库存
            orderItem.setStatus(1);
            buyProductIds.add(cartProductDto.getProductId());
            orderItemMapper.insert(orderItem);

        }
        createOrderContext.setOrderId(orderId);
        createOrderContext.setBuyProductIds(buyProductIds);

        return true;
    }
}
